package homework1;

import java.util.Scanner;

public class ex7 {
    public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        int a=sc.nextInt();
        System.out.println("已输入第一个数值");
        int b=sc.nextInt();
        System.out.println("已输入第二个数值");
        int result = a-b;
        System.out.println("它们的差为："+result);

    }
}
